The only wish list items I have are the ability to add links and tables to Scrivener documents by right-clicking instead of through the top bar. In an earlier beta (or in Scrivener 1; I can’t remember), you could add a table through right-clicking, but it was never available for adding hyperlinks to text (and that was something that immensely frustrated me when I very first started using Scrivener, because it was difficult to find the option).
One main reason I’d like this is because I work extensively in Composition Mode while using my second monitor for research, Quick Reference, etc., and it disrupts my writing when I need to exit it to add a link or work with the table system. I don’t know how important this is for most users, but I also can’t imagine it would be difficult to implement